Malicious PDF — malware analysis report

Static analysis result for SHA-256 970622b66da3d346…

MALICIOUS

PDF

65.5 KB Created: 2021-02-14 10:48:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0530c03567fa3c4bd3467c354ebc2329 SHA-1: 702aacd391228fade4d2ddcc1913730304497050 SHA-256: 970622b66da3d346f81d6b5fa9153963eeb1f6b921250754cb809b75fc8d8032
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://baarspo.ru/wb?keyword=cocoon%20travelsheet%20inlet%20silk%20xl PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4419650/normal_602879f95867c.pdfIn PDF document text
    • http://vash-fasad.live/dajapuseromejiegn.pdfIn PDF document text
    • http://ihsteam.ru/livro_fio_vermelho_do_destino_do14tjq.pdfIn PDF document text
    • http://zuvels.xyz/19844256048an5s1.pdfIn PDF document text
    • http://dwatches.site/pepudilofuparutekadid3c1ql.pdfIn PDF document text
    • http://fokolubamuv.22web.org/camstudio_7_full.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482190/normal_5fd829c6e95be.pdfIn PDF document text
    • https://cdn.sqhk.co/litigoruf/bicjajb/4_pics_1_song_answers_level_3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/magnetism_quiz_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/graded_exposure_worksheet_get_self_help.pdfIn PDF document text
    • http://vudebedof.rf.gd/ds_emulator_android_online.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/difficult_interview_questions_and_answers.pdfIn PDF document text
    • http://suxaxisanu.rf.gd/lawadema.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/dead_kennedys_plastic_surgery_disasters.pdfIn PDF document text
    • http://nikavavufuxirel.epizy.com/black_and_white_board_game_template.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC114 4984 bytes
SHA-256: b18b0add9a789fbd825523e9fbf98d4922dccc116e9450b7ac6ed6a991e50bdc
font_01_sfnt_off0000d1ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1FF 11352 bytes
SHA-256: aab451d042223f517b9f471e8ebf52dcb357d9b96db40c9a77072f38c46d6ed9